Subject:Re: [lttng-dev] Getting function names with
lttng-ust-cyg-profile.so
On 09/10/2013 05:37 PM, Matthew Khouzam wrote:
On 13-09-10 03:00 AM, Woegerer, Paul wrote:
Hi Alexandre,
For trivial examples you can go with 'nm -CS' (or the like), but when
you start to use liblttng-ust-cyg
...@efficios.com, Matthew Khouzam
matthew.khou...@ericsson.com
Date: 09/11/2013 03:24 PM
Subject:Re: [lttng-dev] Getting function names with
lttng-ust-cyg-profile.so
On 09/11/2013 11:12 AM, Amit Margalit wrote:
I agree with Paul, that no redundant data gets replicated with his
approach
Hi Alexandre,
For trivial examples you can go with 'nm -CS' (or the like), but when
you start to use liblttng-ust-cyg-profile.so in combination with shared
objects you will need to record base address information as well (to
allow you map a virtual memory address at a given point in time to
Hi Alex and Mathieu,
A year ago we discussed this and said iirc: the addresses are a good
first step, we'll do more later. and It would be nice to dump the
stabs into the metadata of the ctf trace
I would still maintain that this seems to be the way to go.
A technical hurdle that is probably
Alex brought up an excellent point,
these locations should be events since there can be address collisions.
A default event for location with a payload of address and name would be
sufficient I think. DlOpen will create many events then.
On 13-09-10 11:15 AM, Matthew Khouzam wrote:
Hi Alex and
On 09/10/2013 05:37 PM, Matthew Khouzam wrote:
On 13-09-10 03:00 AM, Woegerer, Paul wrote:
Hi Alexandre,
For trivial examples you can go with 'nm -CS' (or the like), but when
you start to use liblttng-ust-cyg-profile.so in combination with shared
objects you will need to record base address
On 13-09-10 03:00 AM, Woegerer, Paul wrote:
Hi Alexandre,
For trivial examples you can go with 'nm -CS' (or the like), but when
you start to use liblttng-ust-cyg-profile.so in combination with shared
objects you will need to record base address information as well (to
allow you map a
Hi all,
I've recently started playing with liblttng-ust-cyg-profile.so (aka,
getting UST events from -finstrument-functions), and I have to say it's
pretty nifty! I haven't done any benchmarks, but it's certainly faster
than the typical printf() that people use with it...
However, in the
We might want to investigate doing a side-program that gathers the
executables on the system, and lookup the symbols from the ELF. We could
save those in a bin/ subdirectory of a CTF trace. All we need is
instrumentation of the dynamic linker, and to know the executable names
associated with PIDs.
